Add support for zig cc as C compiler. (#13757)

compiler/extccomp.nim

@@ -138,6 +138,16 @@ compiler clang:
   result.compilerExe = "clang"
   result.cppCompiler = "clang++"
 
+# Zig cc (Clang) C/C++ Compiler
+compiler zig:
+  result = clang() # Uses settings from llvmGcc
+
+  result.name = "zig"
+  result.compilerExe = "zig"
+  result.cppCompiler = "zig"
+  result.compileTmpl = "cc " & result.compileTmpl
+  result.linkTmpl = "cc " & result.linkTmpl
+
 # Microsoft Visual C/C++ Compiler
 compiler vcc:
   result = (
@@ -375,6 +385,7 @@ const
     nintendoSwitchGCC(),
     llvmGcc(),
     clang(),
+    zig(),
     lcc(),
     bcc(),
     dmc(),

compiler/options.nim

@@ -162,7 +162,7 @@ type
     disabledSf, writeOnlySf, readOnlySf, v2Sf
 
   TSystemCC* = enum
-    ccNone, ccGcc, ccNintendoSwitch, ccLLVM_Gcc, ccCLang, ccLcc, ccBcc, ccDmc, ccWcc, ccVcc,
+    ccNone, ccGcc, ccNintendoSwitch, ccLLVM_Gcc, ccCLang, ccZig, ccLcc, ccBcc, ccDmc, ccWcc, ccVcc,
     ccTcc, ccPcc, ccUcc, ccIcl, ccIcc, ccClangCl
 
   ExceptionSystem* = enum